The CSN provides a web application for the public to access the Environmental Radiological Surveillance Database

In this application, sampling stations that are part of the national surveillance, developed by the CSN, and surveillance associated with facilities, whose operators are responsible for them, are displayed on a map. These programs collect environmental samples in the field, which are then sent to laboratories at universities or other public or private institutions specializing in low-level radiological environmental measurements, where they are prepared and analyzed to obtain their radiological activity results.

For each station, available radioactivity values since 2006 can be consulted. The search can be refined based on predefined selection criteria related to the time interval, type, and surveillance area, sample type, or analytical determination.

The query results are presented in graphical and table format, which can be printed or exported for further use or analysis, citing CSN as the source.